Webinar Series: Recent Advances in Automotive Simulation

Automakers and suppliers around the world increasingly rely on ANSYS for single-physics and multiphysics simulation solutions, for both component and systems level analysis. Applications range from aerodynamics, underhood thermal management, IC engine, transmission, brakes, and chassis components to the entire electric powertrain including battery, traction motor and power electronics. In this webinar series, ANSYS shares the latest advances in automotive-specific solutions that allow companies to thoroughly explore design alternatives under varied, real-life load conditions early in the design cycle.

Recent Advances in Automotive Simulation Webinar Series Recordings

Accurate Simulation of Engine Emissions
Designing new high-efficiency, low-emissions IC engines presents technical challenges that are often dominated by the chemical kinetics that occur during combustion. Consequently, simulations of combustion for enhanced engine designs need good fuel-combustion chemistry and combustion models. This webcast will provide insights into the elements that are essential in engine combustion CFD in order to predict NOx and soot emissions accurately.

Systematic Deployment of Simulation at an R&D Center: Evolution of Automotive Sub-System Simulation
The Valeo India R&D Center is Valeo’s only global offshore engineering center dedicated to the mechanical engineering needs of all of Valeo’s business groups. Engineering simulation is a central part of this R&D Center, which develops transmission systems, electrical systems, driver assistance systems, wiper systems, and thermal systems. This webcast will present the best practices that were developed to systematically deploy and leverage simulation across different product groups and different physics as well as for advanced uses such as design optimization. Numerous examples of automotive sub-system simulation will be shown.

Accelerating Electric-Vehicle Battery Development with Advanced Simulation
Developing low cost, high energy, safe, and long lasting batteries is crucial for the wide adoption of electric vehicles (EV) - and ultimately reduce petroleum consumption and polluting emissions. Computer aided engineering (CAE) tools could accelerate the development, design, and prototyping of batteries. The Vehicle Technology Program in the Department of Energy has launched the Computer Aided Engineering of Automotive Batteries (CAEBAT) to work with national labs, industry and software venders to develop sophisticated software. The National Renewable Energy Laboratory (NREL) is the coordinator of the CAEBAT activity and are working with a number of companies including ANSYS to develop these models and tools to help improve and accelerate battery design and production. We will present an overview of CAEBAT. At the outset of the CAEBAT project, NREL unveiled a development crucial to filling the gap in existing tools: a predictive computer simulation of Li-ion batteries known as the Multi-Scale Multi-Dimensional (MSMD) model framework. MSMD’s modular, flexible architecture connects the physics of battery charge/discharge processes, thermal control, safety and reliability in a computationally efficient manner. This allows independent development of submodels at the cell and pack levels. In addition to a quick overview of the CAEBAT project, this paper will provide an overview of the MSMD model and its results showing the utility of the model by the impact of design parameters on performance.

Modeling of the Fuel Supply Module and its Components
In this 60-minute webcast speakers from both Continental and ANSYS will provide insight into the simulation of the complete fuel system, including detailed component models. The panel will also answer questions from the audience. For Continental, a benefit of simulation is that the overall system model is used to predict the energy consumption of the whole FSM unit or its components as well as to calculate CO2 emissions. Based on the results of the system model, engineers can choose the best FSM design to reach CO2 emission reduction targets.

CAE Based Strategies to Improve Reliability of Variable Oil Pumps
Pierburg Pump Technology will show how it uses CAE-based strategies, from systems level to fluids to mechanical analysis, to design and develop variable oil pumps. The company will present structural verification of the components and lifetime prediction of the same, offering case studies that show how the problems were successfully solved.

Automotive Exhaust Aftertreatment Simulations
ANSYS Fluent software has features specially developed for automotive exhaust aftertreatment. This webinar will provide an overview of the simulation-based analysis of several aftertreatment applications with focus on selective catalytic reduction (SCR) systems. The details of modeling SCR system will be discussed along with best practices and simulation strategies. Parametric and multiphysics simulations of SCR systems will be discussed as well.

Automotive Powertrain Fluid-Structure Interaction (FSI)
The ANSYS portfolio of simulation software offers a comprehensive suite of multi-disciplinary solutions. This webinar will focus on the fluid-structure interaction (FSI) segment of this suite. ANSYS Workbench provides a unified environment for multiphysics simulations including parametric analysis and optimization. The webinar will show FSI technology capabilities and extensions that allow access to a broad range of powerful ANSYS CFD and ANSYS Mechanical solver capabilities, including moving and deforming meshes, multi-point constraints and distributed parallel HPC. These FSI capabilites will be illustrated through a range of application examples.

Aerodynamics Shape Exploration and Optimization Using Mesh Morphing Technology
Thorough design exploration is essential for improving vehicle performance in various aspects such as aerodynamic drag. Shape optimization algorithms in combination with computational tools such as Computational Fluid Dynamics (CFD) play an important role in design exploration. The webinar describes how to develop rapid solutions for aerodynamics shape optimization problems. In the webinar, we will present a novel method developed using ANSYS Workbench as frame work, RBF morph as morphing technology, ANSYS Fluent solver and DesignXplorer.

Aerodynamic Wind Noise Simulation
Aerodynamic noise generation is becoming a very important aspect of product quality. Evaluating the aeroacoustic performance of a vehicle is a challenging yet very important part of the design process. We will discuss the main issues and strategies for wind noise prediction, discuss some best practices and show examples. At the end, a panel of experts will be available to answer your questions.

Battery Thermal Management and Design
Battery thermal management for high power applications such as electrical/hybrid vehicles is crucial. Modeling is an indispensable tool to help engineers design better battery cooling systems. This webinar will detail a fast and accurate transient battery LTI thermal model based on state space approach. Such an LTI model is then extended to allow varying mass flow rate through LPV technique. In such an approach, the model is created from computational fluid dynamics (CFD) results. The model is then shown to provide excellent results compared with those from CFD under transient heat dissipation and mass flow rate. The proposed LTI/LPV models run much faster than the original CFD model allowing for system level transient thermal analysis.

Brake Squeal Modeling
ANSYS structural mechanics solutions for brake squeal analysis have been enhanced in recent years to become the industry-leading solution. This presentation covers solver aspects (unsymmetric solvers, prestressed modal analysis) as well as usability aspects with ANSYS Mechanical.

Electromagnetic Simulation of Antennas Installed Inside Vehicles
Reducing the overall cost of vehicles while introducing innovative features to meet the growing customer demand is probably the greatest challenge faced by automakers. Electronics has become a large part of a vehicle, not only for infotainment (multimedia, audio, Bluetooth, WiFi, GPS) but also for on-board diagnostics (OBD). Many antennas are present on vehicles today and defining proper installment has become a challenge not only due to the antenna performance, but also due to electromagnetic interference (EMI) that one electronic device (on board or off board) can cause with other systems. This presentation will show how electromagnetic simulation can help address all of these issues, detailing how to evaluate the performance of antennas inside the vehicle and how certification tests of automotive electromagnetic compatibility (EMC) standards like ISO 11451-2 can be easily performed using ANSYS tools.

Filling and Sloshing Simulation: Fuel Tanks, Cooling Jackets and Transmissions
The ANSYS portfolio of simulation software offers multi-disciplinary solutions for filling and sloshing simulations. This webinar will focus on ANSYS filling/sloshing solutions for fuel tanks, water jackets and transmission systems. ANSYS Workbench provides a unified environment for multiphysics simulations including parametric analysis and optimization. The comprehensive physics available for multiphase, moving mesh, multiphysics etc. allow real world applications to be modeled in an accurate and efficient manner.

Power Electronics for Hybrid and Electric Vehicles
Electric drives are found in many areas of transportation and industrial automation; they cover power ranges from fractional to thousands of horsepower and beyond. The trend of incorporating more power electronics in mechatronic applications will continue and even accelerate due to significant benefits of weight and cost reduction, increased reliability of electrical systems, and convenient control and automation via electric and electronic means.

Recent Advances in Traction Motor Simulation
Power electronic converters and electric propulsion motors are extremely critical for every hybrid electric vehicle (HEV) system. Integrated simulation technology makes it possible to optimize the system performance and the efficiency of HEV/EV traction motor designs. This webinar will cover high-level aspects of the state-of art simulation technology with examples illustrating the importance of the results.

Total Brake System Design, Instability/Noise Prediction
Automotive and Aerospace braking systems can generate several kinds of noises. Brake discs develop large and sustained friction-induced oscillations, referred to simply as brake squeal. Many engineering approaches have been implemented to attack the problem. One example is the complex eigenvalue method by which squeal propensity is quantified by the dynamic instability of a certain system mode.

In ANSYS, to predict the onset of instability, one can perform a modal analysis of the pre-stressed structure. The pre-stress may be due to a combination of assembly/operational loads and thermal loads. The presence of unstable modes suggests that the geometry parameters and material properties of the braking system need to be modified. ANSYS offers three different methods to perform a brake squeal analysis. These three methodologies can be executed in a parametric and persistent environment called ANSYS Workbench. A parametric workflow, from CAD model to CAE solution, is in turn the path to parametric design optimization.

Modeling Engine Ports using ANSYS CFD
Performance of internal combustion engines greatly depend on the shape of intake ports. Further, strict emissions standards have increased the importance of exhaust ports. Intake and exhaust port design happens at a very early stage in the overall engine development cycle. Any significant time reduction in this early stage of port design can have significant impact on the turnaround time of the entire design cycle of IC engines. The use of computational fluid dynamics (CFD) for port designs has gained importance over the traditional approach of using flow bench. This is because CFD provides better insight into the 3D flow features that are difficult to evaluate from experiments.

In this webinar session, the use of ANSYS Workbench to analyse and optimize engine ports will be discussed. Issues ranging from the right mesh size and type to new solver settings, shape optimization, shape sensitivity and parametric optimization will be discussed for engine ports with the help of few case studies.